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13-12-2015
Mathematics

Answered

Starting at 1:00 p.m., the tempature is 35degrees the temperature changes −4 degrees Fahrenheit per hour. Write and solve an equation to find how many hours x it will take to reach −1°F.

Verified Answer :

13-12-2015

y=-4x+35

So....

-1=-4x+35

Subtract 35 from each side

-36=-4x

Divide each side by -4

9=x

It will take 9 hours

Answer Link

rrrr456 rrrr456

13-12-2015

35-4x=-1

35+1 = 4x

36=4x

x=9

Answer Link

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